Because I can't," replied the lad.
"Perhaps it's well to stay awake," said the Onondaga gravely.
"Why, Tayoga ?" "Someone comes." "Here in the ravine ?" "No, not in the ravine but on the cliff opposite us." Robert strained both eye and ear, but he could neither see nor hear any human being.

The wall on the far side of the ravine rose to a considerable height, its edge making a black line against the sky, but nothing there moved.
"Your fancy is too much for you, Tayoga," he said.

"Thinking that someone might come, it creates a man out of air and mist." "No, Dagaeoga, my fancy sleeps.

Instead, my ear, which speaks only the truth, tells me a man is walking along the crest of the cliff, and coming on a course parallel with our ravine.

My eye does not yet see him, but soon it will confirm what my ear has already told me.